West Siang Deputy Commissioner Amzad Tak said that he had yesterday written for the postponement of the public hearing fearing a breakdown of law and order in the district.
Two public hearings have been postponed previously.
The first hearing on the project, scheduled at Jeying in Upper Siang district on April 17, and the second one at Rottung in East Siang district yesterday were postponed after clashes erupted between anti-dam protestors and security forces.
Meanwhile, Forum for Siang Dialogue (FSD), Adi Students' Union (AdiSU), Siang Peoples' Forum (SPF) and Siang Bachao Federation (SBF) have called off the Siang Valley bandh instituted against the Public Hearings.
The bandh was called-off pursuant to the postponement of the public hearings of the project till further notice, FSD spokesman Vijay Taram said.